赵某因工作需要，要去某科研所查阅机密文件，应在单位开具（

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29556' and id < 2403249 and id<>'2403249' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29556' and id > 2403249 and id<>'2403249' order by id asc limit 5